Yeah, I did it before I ended up buying a Dualsense Edge.
Really straightforward to do, especially with the video guide they provide. I just found that the paddles weren't in a naturally comfortable position for me to use and they felt a little 'mushy'. Overall if you're on a budget I think it's a good option to go with if you want paddles.
The Dualsense Edge feels much more 'natural' with the paddle placement. Especially because you can have either a 'lever' paddle or a dome style one. I run one of each so my fingers sit more naturally on each one.
Similar to what I've seen of the Hexgaming Phantom, the paddles on that controller also seem to be in a more 'natural' position to press with how you'd be holding a controller. It's all subjective though, you might actually like where the paddles are on the Rise paddle mod and then you've saved yourself a fair whack of cash!
If Scuf weren't so expensive / had such an awful customer service record I'd be tempted by their new TMR controller. I had one of the original Scuf PS5 controllers when they first released and the paddle placement was perfect, it just had stick drift that appeared inside 6 months (that Scuf wouldn't fix as it was inside 'margin of error'), then stopped working wirelessly on my PS5 and then had an issue where if I pressed the touchpad my audio would crackle.
It's a huge shame to see what has happened with Scuf. I played at an event in 2011 when Scuf had just started modding Xbox 360 controllers and selling them, I paid 40 quid for a wired 360 controller with 2 paddles and a super nice rear grip. They even included spare paddles in the box! Compared to now paying almost 300 quid for a controller that doesn't seem to last more than a few months.